<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    
<div id="app">
    <h2>{{massage}}</h2>

    <!-- 若标签中存在v-pre指令，那么该标签内的元素不会被解析，会被识别为字符串直接展示在界面上 -->
    <h2 v-pre>{{massage}}</h2>
</div>

<script src="../js/vue.js"></script>
<script>
    const app = new Vue({
        el: '#app',
        data: {
            massage: '你好'
        }
    })
</script>
</body>
</html>